Air pollution in Delhi, India in November 2016.
Photograph: Harish Tyagi/EPA

Air pollution has risen by 8% in in five years with fast-growing cities in the developing world worst affected, according to the WHO. We want to explore its impact on the daily lives of people around the world. If you live in a city that is affected by toxic air or you work in air quality control, we’d like to hear from you.

From Beijing to Los Angeles, Marseille to Manila, the air in cities has deteriorated so much that it is often no longer safe to breathe. What’s air pollution like where you live and how has it impacted your daily life? What are you, your neighbourhood or your city government doing to improve air quality? If measures against pollution are being implemented in your city, what do you think about them? We also want to hear from those whose job it is to tackle air pollution.

Whichever city in the world you live in, please share your views, experiences and any photographs in the form below. If you’d like to send video, please email francesca.perry@theguardian.com. We’ll be using your responses in our reporting.